The line up of new components for the SP4 will add to the pizzazz of the device not just the CPU/GPU.

Samsung has started manufacturing a PCIe (M.2) SSD that pulls off a rare trick -- it'll be the fastest drive your laptop has ever seen, while consuming almost no power in standby mode. The new SM951 SSD succeeds the Korean company's XP941, a drive that can already read data at a mind-melting 1.4 gigabytes per second (GB/s) clip. On newer laptops or desktops, its successor will shame that with 2.15 GB/s read and 1.55 GB/s write speeds (on PCIe Gen 3 tech) using new 10-nanometer-class MLC flash tech. It also sips 50 percent less power and only consumes a negligible two milliwatts in standby mode.

4x Read/Write over SP3.
Idle power of a similar ssd in SP3 is .3w vs .002w of this baby, that's a good cost benefit trade off. I'm already calculating the battery life benefits. and less heat to dissipate under load means more room for the CPU/GPU big dog.